Improvement in home-power



@uiten taten gstmt @Hita THEOPHILUS HARRISON, OF BELLEVILLE, ILLINOIS,ASSIGrNOR TO HIMSELF AND WILLIAM C. BUCHANAN, OF SAME PLACE.

Letters Patent No, 62,030, dated February 12, 1867.

IMPROVEMENT IN HOItSl-I-IOWBR-l TO ALL WHOM IT MAY, OONCERN:

'Be it known that I, THEOPHILUS HARRISON, of Belleville, in the county,of, St. Clair, and State of Illinois, have invented a new and improvedHorse-Power; and Ido hereby declare that the following is a full, clear,and exact description thereof, which will enable those skilled in theart to make and use the same, reference being had to the accompanyingdrawings, forming part of this specication, in which- Y Figure 1 is aninverted plan of my invention.

Figure 2, a side view of the same.

Figure 3, a plan or top view ofthe same.

Similar letters of reference indicate corresponding parts.

This invention is designed to obviate the great loss of power caused byfriction in transmitting-the power of the horse orhorses to themachinery to bc driven. In th-e single-pinion horse-powers a great dealof friction is produced vby the pressure of the master-wheel on its pinor axis, and in double-pinion powers, as well as others designed toohviate the friction above specified, the arrangement of the gearing,together with its complexity, produces ,as much friction as is saved bythe relieving of thepressure of the master-wheel 4on its pin or axle.Our invention, it is believed, ohviates friction on the pin or axle ofthe master-wheel, and without creating any elsewhere.

A represents the master-wheel, which is fitted on a central pin or axis,B, and has its rim` a resting upon friction-rollers Z and guide-rollersc, hearing upon the upper surface of said rim. The wheel A has levers orsweeps C secured vradially to it, the draught animals being attached tosaid levers or sweeps; and said wheel is provided with pendent teeth,which gear into-pinions D D', one of which, D, is una short shaft, E,and the other shaft, D', on a long shaft F, extending entirely acrossthe frame Gr, the two pinions D D being at opposite sides of the wheelA, and the two shafts E F'connected by pinions II H. `By thisarrangement it will b' seen that when the master-wheel A is rotated thecentral pin orlaxis B will be relieved of the pressure of the wheel A onaccount of its action upon the two pinions D D at opposite sides of B,and Vas the pinions I) D' are on separate or independent 'shafts E F,and the latter connected by pinions H H, the power from the master-wheelA is transmitted to said shafts with the least possible amount offriction. I am aware that a horse-power, composed of a master-wheelgearing into pinins at opposite sides of its pin or axle, is now inuse,` but in this case both pinions are placed on one and the sameshaft, and one pinion placed loosely on said shaft, so that it mayrotate in a reverse direction to the other. This occasionsconsiderablefriction. Other `modes have been `devised with a more complexarrangement of gearing, but they create a proportonably greaterdegreecof friction in their operation. In' order to compensateifor anyirregularity in the gearing, I have the pin or axle B of themaster-wheel A of elliptical or ovalifo'rm in its horizontal section,(see iig. 3,) the major diameter of the pinor axlebeing about, ornearly, in line with the shaft F,'and the holein 'chev hub of wheel A ofcircular form. This admits of a lateral play of wheel A, and preventsall binding of the gearing and unnecessary wear and friction. l v

` I-Iaving thus described my invention, what I claim `as new, and desireto secure by Letters Patent, is-

The arrangement of the pinion D andthe pinion D', shaft F, and pinion H,diagonally with the pinion H and' shaft E, in combination with themaster-wheel A, constructed and operating in the manner and for thepurpose, herein specified; 4

I also claim the elliptical or oval pin or axle B of the master-wheel A,in connection with the two `pinions D Dand separate shafts E F,substantially as and/for the purpose set forth. f

,THEOPHILUS HARRISON. Witnesses:

JAMES Ammon,

Amos THOMPSON.

